The Mauna Loa Observatory is one of the longest-running ... a study published in October found that carbon emissions from forest fires increased by 60 percent globally between 2001 and 2023.

and Mauna Loa, one of the largest in the world. Visitors can hike across the floor of a dormant crater, view ancient petroglyphs and steam vents, and stroll through a primeval rain forest to an ...

The level of carbon dioxide in the atmosphere measured by a weather station at the Mauna Loa Observatory in Hawaii increased by 3.58 parts per million in 2024 – the biggest jump since records ...

Mauna Kea Summit Adventures and Hawaii Forest and Trail are two top-rated companies that are praised by reviewers for their knowledgeable and enthusiastic guides. Tours typically last around eight ...